Gas heating appliance



V. SJOSTROM.

GAS HEATING APPLIANCE.

' APPLICATION FILED "0y: 19, 1918.

1,376,650. Patented May 3, 1921.

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UNITED STATES VICTOR SJ'6STR6'M, 0F LOS ANGELES, CALIFORNIA GAS HEATING APPLIANCE.

Application filed November 19, 1918.

T 0 (LZZ whom it may concern:

Be it known that I, Vrc'ror. SJos'rnoM, a subject of the King of Sweden, and a resident of Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Gas Heating Appliances, of which the following is a specification.

This invention relates to heating appliances and has particular relation to heating stoves, in which gas is used as a fuel. The heater is at apted for use in the form of a stove, and an object of my invention is to provide a heater having the walls surrounding the combustion chamber and the radiating portions formed of an integral metal casting, thus providing against the burning out of the walls of the heater, and suitable channels, or passages being provided in the heater for directing a draft therethrough and for venting the heater to the atmosphere.

Vith the above and other objects in View, my invention comprises certain novel construction features, combinations and arrangements of parts which will be hereinafter more completely described and claimed.

Two practical embodiments of my invention are illustrated in the accompanying drawings, forming a part of this application, in which:

Figure 1 is an elevation of my invention when arranged as an ordinary stove or heater, one of the peripheral grilles being omitted from the exterior thereof for disclosing the exterior form of the device.

Fig. 2 is a composite plan of the form of heater shown in Fig. 1, a portion thereof being in section 011 the line 2-2 of Fig. 3.

Fig. 3 is a sectional elevation of the same on the line 3-3 of Fig. 2.

Fig. 1 is a sectional plan of the same on the line 44 of Fig. 3.

Referring now particularly to the above mentioned and described drawings, I will describe the heater shown in Figs. 1 to 4 inclusive, z'. e., a portable stove or heater.

The upper and lower portions of the body in this form of heater, as shown, is circular in cross section and composed of a single integral cast metal cylinder B having legs 1 attached to the bottom or separate base 2 thereof, said base having a ring 3 with arms 4 leading therefrom to the center, thus providing air spaces between the arms. At the Specification of Letters Patent.

Patented May 3, 1921.

Serial No. 264,105.

center of the base 2 a depending boss 5 is integrally formed therewith and is provided with a vertical bore (5, closed at the lower end and open at the upper end above the surface of the base 2, a gas pipe 7 being connected with the bore 6. Said pipe may be conveniently supported at its outer end in a depending lug 8 formed on the apron of the base and bored so as to permit the extension of the pipe therethrough, as shown. The outer end of pipe 7 has a valve casing 9 thereon which is adapted to be connected with a flexible tube leading to a source of gas supply.

The body member 2 B has a centrally formed combustion chamber 10 which is surrounded by an annular wall 11 extendlng from the upper surface of the base 2 to apoint substantially below the enlarged dome 19. Exterior of the wall 11 I provide a plurality of vertical draft passages 13, wlthin wall. 1 1, which communicate at the bottom with an annularv chamber 15 formed between the wall 11 and the lower portion of outer wall 14 at the bottom of the member B, the floor 17 of which is adapted to rest upon and be attached to the ring of the base 2 by means of screws 18. The upper chamber 12 is inclosed by means of a dome 19 which is integrally connected with the outer wall 14:. Thus, the chamber 10 communicates directly with the upper chamber 12, and chambers- 12 and 15 are in communication by means of the passages 13. The chamber 15 is vented to the outside by means of a vent pipe 20.

The dome 19 is provided with an opening 21 in the center which is covered by a cap 22 and slightly to one side of the center a mica disk 23 is held in place over an opening 2% by means of a retainer 25 so that the operation of the burner may be visible to the eye. The exterior of the body B in the wall 1411218 peripheral recesses 26 formed therein which are covered by ornamental grilles 27, suitably held in place and flush with the outer wall 14 and in the wall 11 of one of the recesses 26 a suitable opening 28 is provided through which a match may be inserted into the combustion chamber for lighting the heater. Vent pipe 20 has a suitable damper 29 therein exterior of the heater so that the draft may be re ulated thereby.

The burner is composed of a plurality of sections 30, each having a plurality of arms,

as shown, with small jet apertures 31 therein at the tops, and a bell shaped mixing receptacle 32. The burner sections and the mixingreceptacle have projections 83 which are 'ada ted to be screwed into corres ondin b openings in adjacent members, so as to be leak roof, the mixer 32 being inverted and attac ed to the base 2, as shown. he upper section of burner is provided with a suitable closure 34 forclosing the passage 35 formed in the burners so that the gas admitted from the passage 6 in boss of the base will be projected through bore, orpassage, 85 and therefrom into the chambers 36 of the burner sections, from which the gas is discharged upwardly through the jets 31 into the combustion chamber of the heater.

The heat rises in the combustion chamber to the upper chamber 12 and is directed around the curved top thereof into the vertical passages 13 and from thence all noxious fumes and the products of combustion are discharged through the annular chamber at the bottom into the vent and thence to the outside, none of the fumes being admitted to the room. The great amount of radiating surface provided in the inner and outer walls and the grilles 27 insures a maximum degree of heat from a relatively small heater and also eliminates the usual un- V pleasant results obtained from gas heaters.

' ber therein, the upper end of said inner wall being spaced from said dome, a combustionchamber being formed interlorly of said 1n-' ner wall, in communication with said heat chamber, the peripheral portion of said body being subdivided into a plurality of radiating chambers open to the atmosphere extending from said dome to the top of said annular passage, and a plurality of alternating heat passages affording communication between said heat chamber and said annular passage, a vent pipe connected with said annular passage for discharging the prod ucts of combustion and a plurality of grilles covering said radiating chambers and attached to said outer wall.

2. A gas heater having an integrally cast body having inner and outer walls and a continuous annular passage therebetween at the bottom, and a dome having a heat chamber therein, the upper end of said inner wall being spaced from said dome, a combustion chamber being formed interiorly of said inner wall in communication with said heat chamber, the peripheral portion of said body being subdivided into a plurality of radiating chambers open to the atmosphere and extending from said dome to the top of said annular passage, and a plurality of alternating heat passages affording communication between said heat chamber and said annular passage, a vent pipe connected with said annularpassage for discharging the products of combustion, a plurality of grilles c-overing said radiating chambers and attached to said outer wall, a burner in said combustion chamber and an opening in the wall of said body, whereby the gas from said burner may be ignited from the exterior of the heater.

' VICTOR SJOSTROM. Witnesses:

D. O. FAWoET'r, LUTHERL. MACK. 

